refactor(mall): 重构DTO和控制器结构并添加验证注解

Administrator

2026-06-12 07b964209ad7ff91def2ed1962c5a02441710d86

 src/main/java/cc/mrbird/febs/mall/entity/MallGoodsCoupon.java

@@ -26,5 +26,4 @@
    //减免金额
    private BigDecimal realAmount;


}